Light from a 580.9 nm source goes through two slits 76 micrometers apart. What is the...

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Light from a 580.9 nm source goes through two slits 76 micrometers apart. What is the...

Light from a 580.9 nm source goes through two slits 76 micrometers apart. What is the separation of the two first order maxima occurring on a screen 1.5 m from the slits? Give your answer in mm with 3 significant figures.
Light from a monochromatic source shines through a double slit onto a screen 4.7 m away. The slits are 0.15 mm apart. The dark bands on the screen are measured to be 1.7 cm apart. What is the wavelength of the incident light? Give your answer in nm with 3 significant figures.
Two coherent sources A and B emit electromagnetic waves with wavelength 19.7 cm. The observation point P is 5.25m from source A, and 4.65m from source B. What is the phase difference between the two waves at the point P? Express your answers in radians with two digits after the decimal point.

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